What is the most unsuitable constellation combination among the twelve constellations?

Many people will use the constellation as their own mate selection criteria. When the constellations say they are not suitable, they will think carefully. So what are the most unsuitable constellation pairs in 12 constellation?

Aries and Capricorn seem to be naturally incompatible, because Aries is always particularly impulsive and Capricorn is always particularly rational. Perhaps at the beginning, Capricorn will be attracted by Aries' romance, and Aries will be locked by Capricorn's reason, but in the end, two people often can't tolerate each other's shortcomings, and both of them are very strong in life. Once there is a contradiction between two people, then

Sagittarius and Cancer are also very mismatched, because Cancer is a particularly family-oriented constellation. When they fall in love, they hope their lover can't stay with them all the time. Sagittarius, on the other hand, loves freedom by nature. They like to take risks all over the world and are destined not to stay for anyone. Sagittarius won't change his dreams for others. Sagittarius is doomed not to give cancer the sense of security and sureness it wants.

Libra and Taurus are not suitable together, because Taurus people are always particularly rational in life, and they pay special attention to those material comforts in life. Libra people are too idealistic and always sacrifice their own interests for their friends. Taurus does not recognize Libra's values, and they will inevitably have many contradictions together. Libra is also a sign that especially likes romance. Taurus people are too dull, too calm and always dissatisfied.